Open-source firewall and router platform based on FreeBSD, providing the GUI, API and system backend for OPNsense.
4.8K1KPHPBSD-2-ClauseUpdated yesterday
1 alternative
Best open-source alternatives to Fortinet FortiGate (2026)
Looking for a free, open-source alternative to Fortinet FortiGate? These 1 projects can replace it. Each one passed our quality screening and is explained in plain words, so you can compare stars, license and maintenance at a glance.
Quick comparison
| Project | Stars | License | Last commit |
|---|---|---|---|
| opnsense/core | ★ 4.8K | BSD-2-Clause | yesterday |
FAQ
- Is there a free, open-source alternative to Fortinet FortiGate?
- Yes. The most popular open-source alternatives to Fortinet FortiGate on Repolode are core.
- Which Fortinet FortiGate alternative should I choose?
- core has the most GitHub stars and is released under BSD-2-Clause. Compare the license and last commit of each option in the table above before choosing.